Device for limiting the gas flow in a discharge valve for gas lighters and method

Abstract

The device for limiting the gas flow in a discharge valve for gas lighters for cigarettes of this invention comprises a portion (13) of reduced cross-section of the porous dipping element (7) which transfers by capillarity the liquefied gas from the tank to said valve. In this portion the fibers forming the porous dipping element (7) are so compressed with respect to the remainder portion of said porous dipping element (7) as to reduce the gas flow to a preset value corresponding to the maximum desired flame height.

I claim: 
     
       1. A method of making a device for permanently limiting the gas flow in a discharge valve for lighters for cigarettes, said device comprising a housing;   a tank mounted in said housing and filled with liquified gas;   a porous longitudinal element having one end dipped into said tank to transfer said gas by capillary action to said discharge valve;   a jacket encompassing said porous element to form a combined unit mounted in said housing;   said method comprising the steps of:   introducing said combined unit prior to mounting it in said housing in an apparatus capable of measuring the flow of said gas through said unit;   interlocking said apparatus with a die adapted to neck down said combined unit so that the length of said unit which is necked down corresponds to the flow of said gas measured by said apparatus;   subjecting said combined unit to a necking down action by moving said die along said unit starting from an end thereof while gas is flowing through said unit;   stopping said necking down action when said gas flow reaches a value read at said apparatus providing a desired flame height and thereupon permanently setting said necked down portion; and   subsequently mounting said premanently set necked down combined unit in said housing.